<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>权限列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <el-row>
        <el-col>
          <el-button type="primary" @click="jddDialogVisible=true">添加角色</el-button>
        </el-col>
      </el-row>
      <!-- 角色列表区域 -->
      <el-table :data="rolelist" border stripe>
        <!-- 展开列 -->
        <el-table-column type="expand">
          <template slot-scope="scope">
            <el-row
              :class="['bdbottom', i1===0?'bdtop':'','vcenter']"
              v-for="(item1,i1) in scope.row.children"
              :key="item1.id"
            >
              <!-- 渲染一级权限 -->
              <el-col :span="5">
                <el-tag closable @close="removeRightById(scope.row,item1.id)">{{item1.authName}}</el-tag>
                <i class="el-icon-caret-right"></i>
              </el-col>
              <!-- 渲染二级权限 -->
              <el-col :span="19">
                <!-- 通过 for循环 嵌套渲染二级权限 -->
                <el-row
                  :class="[i2===0?'':'bdtop','vcenter']"
                  v-for="(item2,i2) in item1.children"
                  :key="item2.id"
                >
                  <el-col :span="6">
                    <el-tag
                      type="success"
                      closable
                      @close="removeRightById(scope.row,item2.id)"
                    >{{item2.authName}}</el-tag>
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span="18">
                    <el-tag
                      type="warning"
                      v-for="(item3,i3) in item2.children"
                      :key="item3.id"
                      closable
                      @close="removeRightById(scope.row,item3.id)"
                    >{{item3.authName}}</el-tag>
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
            <pre>
                {{scope.row}}   
              </pre>
          </template>
        </el-table-column>

        <!-- 索引列 -->
        <el-table-column type="index"></el-table-column>
        <el-table-column label="角色名称" prop="roleName"></el-table-column>
        <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEddDialog(scope.row.id) "
            >编辑</el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="deleteUserById(scope.row.id)"
            >删除</el-button>
            <el-button
              type="warning"
              icon="el-icon-setting"
              size="mini"
              @click="showSetRightDialog(scope.row)"
            >分配权限</el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <!-- 添加角色的对话框 -->
    <el-dialog title="添加角色" :visible.sync="jddDialogVisible" width="50%" @close="jddDialogClosed">
      <!-- 内容主体区域 -->
      <el-form :model="jddForm" :rules="jddFormRules" ref="jddFormRef" label-width="80px">
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="jddForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="角色描述" prop="roleDesc">
          <el-input v-model="jddForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="jddDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="jddUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 编辑用户的对话框 -->
    <el-dialog title="编辑角色" :visible.sync="eddDialogVisible" width="50%" @close="eddDialogClosed">
      <!-- 内容主体区域 -->
      <el-form :model="eddForm" :rules="eddFormRules" ref="eddFormRef" label-width="80px">
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="eddForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="角色描述" prop="roleDesc">
          <el-input v-model="eddForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="eddDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="edduUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配权限的对话框 -->
    <el-dialog
      title="提示"
      :visible.sync="setRightDialogVisible"
      width="50%"
      @close="setRightDialogClosed"
    >
      <!-- 树形控件 -->
      <el-tree
        :data="rightslist"
        :props="treeProps"
        show-checkbox
        node-key="id"
        default-expand-all
        :default-checked-keys="defKeys"
        ref="treeRef"
      ></el-tree>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRightDialogVisible= false">取 消</el-button>
        <el-button type="primary" @click="allotRights">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import { async } from 'q'
export default {
  data() {
    return {
      //所有角色列表数据
      rolelist: [],
      //控制分配权限对话框的显示与隐藏
      setRightDialogVisible: false,
      //所有权限的数据
      rightslist: [],
      //树形控件的属性绑定对象
      treeProps: {
        label: 'authName',
        children: 'children'
      },
      //默认选中的节点Id值数组
      defKeys: [], //当前即将分配权限的角色id
      roleId: '',
      
      //控制添加用户框的显示与隐藏
      jddDialogVisible: false,
      //添加用户的表单数据
      jddForm: {
        roleName: '',
        roleDesc: '',
        roleId: ''
      },
      //添加表单的验证规则对象
      jddFormRules: {
        roleName: [
          {
            required: true,
            message: '请输入角色名称',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '角色名长度在3-10个字符之间',
            trigger: 'blur'
          }
        ],
        roleDesc: [
          { required: true, message: '请输入角色描述', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '描述长度在6-15个字符之间',
            trigger: 'blur'
          }
        ]
      },
      //控制编辑角色对话框的显示与隐藏
      eddDialogVisible: false,
      //查询到的角色信息对象
      eddForm: {},
      //编辑表单的验证规则对象
      eddFormRules: {
        roleName: [
          {
            required: true,
            message: '请输入角色名称',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '角色名长度在3-10个字符之间',
            trigger: 'blur'
          }
        ],
        roleDesc: [
          { required: true, message: '请输入角色描述', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '描述长度在6-15个字符之间',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  created() {
    this.getRolesList()
  },
  methods: {
    //获取所有角色的列表
    async getRolesList() {
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.rolelist = res.data
      console.log(this.rolelist)
    },
    //展示分配权限的对话框
    async showSetRightDialog(role) {
      this.roleId = role.id
      //获取所有权限的数据
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) {
        return this.$message.error('获取权限数据失败！')
      }
      //获取到的权限数据保存到data中
      this.rightslist = res.data
      console.log(this.rightslist)
      //递归获取三级节点的Id
      this.getLeafKeys(role, this.defKeys)

      this.setRightDialogVisible = true
    },
    //通过递归的方式，获取角色下所有三级权限的id，并保存到dekeys数组中
    getLeafKeys(node, arr) {
      //如果当前node节点不包含children属性，则是三级节点
      if (!node.children) {
        return arr.push(node.id)
      }
      node.children.forEach(item => this.getLeafKeys(item, arr))
    },
    //监听分配权限对话框的关闭事件
    setRightDialogClosed() {
      this.defKeys = []
    },
    //点击为角色分配权限
    async allotRights() {
      const keys = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys()
      ]

      const idStr = keys.join(',')
      const { data: res } = await this.$http.post(
        `roles/${this.roleId}/rights`,
        { rids: idStr }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('分配权限失败！')
      }
      this.$message.success('分配权限成功！')
      this.getRolesList()
      this.setRightDialogVisible = false
    },
    //根据Id删除对应的权限
    async removeRightById(role, rightId) {
      //弹框提示用户是否要删除
      const confirmResult = await this.$confirm(
        '此操作将永久删除该文件, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('取消了删除！')
      }
      const { data: res } = await this.$http.delete(
        `roles/${role.id}/rights/${rightId}`
      )
      if (res.meta.status !== 200) {
        return this.$message.error('删除权限失败！')
      }
      //    this.getRolesList()
      role.children = res.data
    },
    //监听添加用户对话框的关闭事件
    jddDialogClosed() {
      this.$refs.jddFormRef.resetFields()
    },
    //点击按钮，添加新角色
    jddUser() {
      this.$refs.jddFormRef.validate(async valid => {
        if (!valid) return
        //可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('roles', this.jddForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        //隐藏添加用户的对话框
        this.jddDialogVisible = false
        //重新获取用户列表数据
        this.getRolesList()
      })
    },
    //展示编辑用户的对话框
    async showEddDialog(id) {
      // console.log(id);
      const { data: res } = await this.$http.get('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      console.log(res.data, 111)

      this.eddForm = res.data
      this.eddDialogVisible = true
    },
    //监听编辑用户对话框的关闭事件
    eddDialogClosed() {
      this.$refs.eddFormRef.resetFields()
    },
    //编辑用户信息并提交
    edduUserInfo() {
      this.$refs.eddFormRef.validate(async valid => {
        // console.log(valid);
        if (!valid) return
        //发起编辑用户信息的数据请求
        // console.log(this.eddForm, 77777)

        const { data: res } = await this.$http.put(
          'roles/' + this.eddForm.roleId,
          {
            roleName: this.eddForm.roleName,
            roleDesc: this.eddForm.roleDesc
          }
        )
        // console.log(res);

        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败！')
        }

        //关闭对话框
        this.eddDialogVisible = false
        //刷新数据列表
        this.getRolesList()
        //提示编辑成功
        this.$message.success('更新用户信息成功！')
      })
    },
    async deleteUserById(id) {
      //弹框询问用户是否删除
    const confirmResult= await this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err=>err)
      //如果用户确认删除，则返回值为字符串 confirm
      //如果用户取消了删除，则返回值为字符串cancel
      if(confirmResult!=='confirm'){
      return  this.$message.info('已经取消了删除')
      }
         console.log(res);
         
     const{data:res} = await this.$http.delete('roles/'+id)
      if(res.meta.status!==200){
        return this.$message.error('删除用户失败！')
        
      }
      this.$message.success('删除用户成功！')
      this.getRolesList()
      
      
    }
  }
}
</script>

<style lang="less" scoped>
.el-tag {
  margin: 7px;
}
.bdtop {
  border-top: 1px solid #eee;
}
.bdbottom {
  border-bottom: 1px solid #eee;
}
.vcenter {
  display: flex;
  align-items: center;
}
</style>